This copyright notice applies to the text and source
code of this web site, and the graphics that appear on it.
The software described in this text has its own copyright notice and
license, which can be found in the distribution itself.

Permission is granted to copy, distribute, and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts. A copy of this license is included in the file
COPYING.TXT

Plans for Sphere Model 2 (Sphere Development) (DIN A3 Portrait)
2010.06.02.
This version has separate tabs, so the pieces are flush and don't overlap.

2010.06.04.
Added crosshairs for holes that can be used for pulling the ends together.
Otherwise revised the plans and instructions somewhat.
2012.08.05, 2012.08.06.
Added octagonal caps for the ends and matching pyramids to be attached to the caps.
This is meant to solve the problem that it's difficult to attach the spherical
biangles as they narrow to a point at the ends. Please note: The caps
and pyramids can also be used for Sphere Model 1, below.

Plans for Sphere Model 1 (Sphere Development) (DIN A3 Portrait)
2009.10.20.
This version has tabs attached to the pieces, so the latter overlap.

2010.06.02.
Replaced dots with crosshairs for pricking out the holes and added
numbers and tick marks. Revised the instructions.
2010.06.04.
Added crosshairs for holes that can be used for pulling the ends together.
Otherwise revised the plans and instructions somewhat.